<template>
  <div class="login-container">
    <div class="bg_first">
      <img src="../../assets/login/bg@3x.png" alt="">
      <div class="bg_two">
        <img src="../../assets/login/TUTU@3x.png" alt="">
      </div>
    </div>
    <el-form ref="loginForm" :model="loginForm" class="login-form" autocomplete="on" label-position="left">
      <div class="title-container">
        <h3 class="title">智能电力运维平台</h3>
        <lang-select class="set-language" />
      </div>
      <el-form-item prop="username" class="item" :error="error.name ? error.name[0] : ''">
        <span class="svg-container">
          <img src="../../assets/login/user@3x.png" alt="">
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder-style="placeStyle"
          placeholder="请输入用户名"
          name="username"
          type="text"
          tabindex="1"
        />
      </el-form-item>
      <el-tooltip v-model="capsTooltip" :content="$t('common.capsLock')" placement="right" manual>
        <el-form-item prop="password" class="item" :error="error.password ? error.password[0] : ''">
          <span class="svg-container">
            <img src="../../assets/login/passw@3x.png" alt="">
          </span>
          <el-input
            :key="passwordType"
            ref="password"
            v-model="loginForm.password"
            :type="passwordType"
            placeholder-style="placeStyle"
            placeholder="请输入密码"
            name="password"
            tabindex="2"
            autocomplete="on"
            @keyup.native="checkCapslock"
            @blur="capsTooltip = false"
            @keyup.enter.native="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
            <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
          </span>
        </el-form-item>
      </el-tooltip>

      <el-form-item prop="username" class="item1" :error="error.name ? error.name[0] : ''">
        <div class="verification">
          <span class="svg-container">
            <img src="../../assets/login/yan@3x.png" alt="">
          </span>
          <el-input
            ref="captcha"
            v-model="loginForm.captcha"
            placeholder-style="placeStyle"
            placeholder="请输入验证码"
            name="captcha"
            type="text"
            tabindex="1"
            autocomplete="on"
          />
        </div>
        <div class="codeStyle">
          <img v-if="captcha" style="width: 100%;height: 100%" :src="captcha" alt="" @click="changeCode">
        </div>
      </el-form-item>

      <el-button
        :loading="loading"
        type="primary"
        style="width:100%!important;height: 50px!important;margin-bottom:30px!important;border-radius: 25px!important;font-weight: 500;"
        round
        @click.native.prevent="handleLogin"
      >
        {{ $t('login.logIn') }}
      </el-button>
    </el-form>
  </div>
</template>

<script>
import LangSelect from '@/components/LangSelect'

import { captcha } from '@/api/login'

export default {
  name: 'Login',
  components: { LangSelect },
  data() {
    return {
      captcha: '',
      loginForm: {
        username: '',
        password: '',
        captcha: ''
      },
      passwordType: 'password',
      capsTooltip: false,
      loading: false,
      showDialog: false,
      redirect: '/home/data/index',
      otherQuery: {},
      error: {}
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        const query = route.query
        if (query) {
          this.redirect = query.redirect
          this.otherQuery = this.getOtherQuery(query)
        }
      },
      immediate: true
    }
  },
  created() {

  },
  mounted() {
    if (this.loginForm.username === '') {
      this.$refs.username.focus()
    } else if (this.loginForm.password === '') {
      this.$refs.password.focus()
    }
    this.changeCode()
  },
  destroyed() {

  },
  methods: {
    checkCapslock(e) {
      console.log(e)
      const { key } = e
      this.capsTooltip = key && key.length === 1 && (key >= 'A' && key <= 'Z')
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.loading = true
      this.$store.dispatch('user/login', this.loginForm)
        .then(() => {
          this.$router.push({ path: this.redirect || '/', query: this.otherQuery })
          // this.$router.push({ path: '/homeChart' })
          this.loading = false
        }).catch((reason) => {
          this.loading = false
          if (reason.response !== undefined) {
            const { data } = reason.response
            if (data.code === 422) {
              this.error = data.data
            }
          }
        })
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== 'redirect') {
          acc[cur] = query[cur]
        }
        return acc
      }, {})
    },
    /* 更换图形验证码 */
    changeCode() {
      captcha({}).then(response => {
        this.captcha = response.data.img
        this.loginForm.key = response.data.key
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #000000;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: #333333;
      height: 50px;
      /*caret-color: $cursor;*/

      /*&:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }*/
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;
.placeStyle {
  width: 94px;
  height: 16px;
  font-size: 16px;
  font-family: Source Han Sans CN;
  font-weight: 500;
  color: #999999;
}

.login-container {
  min-height: 100%;
  width: 100%;
  /*background-color: $bg;*/
  overflow: hidden;
  position: relative;

  .bg_first {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;

    img {
      width: 100%;
      height: 100%;
    }

    .bg_two {
      position: absolute;
      left: 309px;
      top: 200px;
      width: 517px;
      height: 500px;

      img {
        width: 100%;
        height: 100%;
      }
    }
  }

  .login-form {
    position: absolute;
    right: 383px;
    top: 227px;
    width: 389px;
    max-width: 100%;
    /*padding: 160px 35px 0;*/
    margin: 0 auto;
    overflow: hidden;

    .item {
      height: 50px;
      border: 1px solid #999999;
      background-color: #fff;
      border-radius: 25px;
      margin-bottom: 30px;
    }

    .item1 {
      width: 100%;
      height: 50px;
      background-color: transparent;

      .verification {
        float: left;
        width: 204px;
        height: 50px;
        border: 1px solid #999999;
        background-color: #fff;
        border-radius: 25px;
        margin-bottom: 30px;
      }

      .codeStyle {
        float: right;
        width: 116px;
        height: 50px;
        background-color: #f3f0f0;
        border-radius: 10px;
        overflow: hidden;
      }
    }
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 5px 5px 0px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;

    img {
      width: 20px;
      height: 20px;
    }
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      /*color: $light_gray;*/
      color: #2D8FFF;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }

    .set-language {
      color: #fff;
      position: absolute;
      top: 3px;
      font-size: 18px;
      right: 0px;
      cursor: pointer;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .thirdparty-button {
    position: absolute;
    right: 0;
    bottom: 6px;
  }

  @media only screen and (max-width: 470px) {
    .thirdparty-button {
      display: none;
    }
  }
}
</style>
